An Enduro Bearings exclusive, XD-15 Ceramic-Hybrid bearings combine corrosion-proof, cryogenically treated nitrogen steel races with Grade 3 Silicon Nitride ceramic balls, engineered through a proprietary process to deliver the highest performance. Deep-groove raceways accommodate the largest possible Grade 3 ceramic balls, increasing contact area for improved durability, performance, and longevity. Dual-lip labyrinth (LLB) seals protect against contaminants and retain 90% fill of Kluber NBU52 grease, which runs smoother over time and resists being washed out.
The standout feature of XD-15 bearings is that they improve with use. As the bearings wear in, the super-hard ceramic balls polish the races, making them even smoother. Unlike other ceramic-hybrid bearings that lose performance over time, Enduro XD-15 bearings maintain their initial advantages and become faster and smoother the more they’re used. Confidence in this performance is backed by an unlimited lifetime bearing and race warranty.
This bearing size is primarily used in hubs.
Enduro bearings are available in high-carbon chromium steel, 440C stainless steel, ceramic-hybrid, and XD-15 with ceramic or stainless balls. All bearings feature the deepest groove races possible to accommodate the largest balls, combined with dual-lip seals riding in a micro-groove to form a full labyrinth, offering superior protection against the elements.
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